Organic Molecules Lab And Review: Question Preview (ID: 32285)

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The coagulation test is used to detect:
a) salts b) sugars c) proteins d) fats
A positive result for the coagulation test is a:
a) red ring on top b) white, cloudy and posibily a gel-like appearance c) purple or violet color d) yellowish orange color
A negative result for the silver nitrate test is a:
a) yellowish orange color b) green color c) cloudy, white appearance d) clear color
A negative result of the benedict's test is a:
a) dark blue or black color b) blue color c) cloudy, white appearance d) None of these
Positive test for the Biuret's test is:
a) Red ring on the top b) A white, cloudy appearance c) A blue color d) a light purple (violet) color
Benedict's test for:
a) Sugars b) Starch c) Protein d) Salt
Silver nitrate tests for:
a) Fats b) Salt c) Protein d) Sugar
Iodine was used to test for:
a) Starch b) Simple Sugar c) Protein d) Salt
The biuret's test is used to detect:
a) salts b) starch c) proteins d) fats
A positive result of the benedict's test is a:
a) green color b) white color c) blue color d) orange color
Organic molecules that have the same molecular formulas, but different arrangements of the atoms are
a) Mirror images b) Isotopes c) Isomers d) None of these, because this cannot happen
Polypeptide chains form sheets and coils make up this structure of proteins.
a) Primary b) Secondary c) Tertiary d) Quaternary
This bond occurs when the atoms donate or accept electron(s).
a) Ionic b) Hydrogen c) Polar covalent d) Nonpolar covalent
This main function of this macromolecule is to provide energy to the cell.
a) Glucose b) Nucleotides c) Chitin d) ATP
This type of bond holds together the double helix of DNA.
a) Polar covalent b) Nonpolar covalent c) Ionic d) Hydrogen
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